Unreasonable Searches Evidence Inadmissible When Police Exceed Warrant Scope

The Supreme Court has long held that a search warrant is not a license for police to conduct a fishing expedition. When law enforcement officers exceed the scope of a warrant and disregard the mandatory safeguards for seizing illegal drugs, the evidence they obtain becomes inadmissible in court. In a significant 2022 ruling, the Court applied these principles to dismiss criminal charges for illegal possession of shabu, demonstrating the high price of procedural shortcuts.

The Case of Antonio Sio

In 2010, police applied for a search warrant against Antonio Sio, a businessperson suspected of keeping shabu and drug paraphernalia in his residence in Lucena City. The warrant, issued by the Manila Regional Trial Court, specified that Sio's residence was at Ilaya Ibaba, Purok 34, Barangay Dalahican. It also listed two vehicles—a Toyota Camry with plate number ZYR 468 and a Honda Civic with plate number ZGS 763—as items to be seized.

When the police implemented the warrant on October 24, 2010, several irregularities emerged. The search was conducted at Barangay Purok 3-A, a different location from that stated in the warrant. The police seized a CRV Honda with plate number XPX 792 and a Toyota Camry with plate number ZRY 758—vehicles different from those described in the warrant. In fact, a certification from the Land Transportation Office showed that no vehicle with plate number ZYR 468 existed.

The Issue Before the Court

Sio challenged the search, arguing that the evidence seized should be inadmissible because the police had violated the constitutional requirements for search warrants and the chain of custody rules under Republic Act No. 9165, the Comprehensive Dangerous Drugs Act. The trial court and the Court of Appeals denied his motion, finding probable cause for his arrest. The Supreme Court, however, reversed these rulings.

Constitutional Requirements for Search Warrants

Article III, Section 2 of the Constitution requires that a search warrant issue only upon probable cause determined personally by a judge, and that it particularly describe the place to be searched and the things to be seized. Rule 126, Section 4 of the Rules of Court reiterates these requirements.

The purpose of the particularity requirement is to limit the discretion of law enforcement officers. As the Court explained, a search warrant is not a sweeping authority that empowers a raiding party to undertake a fishing expedition. When police search a place different from that stated in the warrant, or seize property not described in it, they violate the Constitution. The Court cited People v. Court of Appeals, which held that the place to be searched, as set out in the warrant, cannot be amplified or modified by the officers' own personal knowledge. Such a change would concede to police officers the power of choosing the place to be searched—a discretion the Constitution has precisely removed from them.

Chain of Custody Under Section 21

The Court also addressed the requirements of Section 21 of Republic Act No. 9165. This provision mandates that the apprehending team, immediately after seizure and confiscation, physically inventory and photograph the seized drugs in the presence of: (1) the accused or persons from whom the items were seized, or their representative or counsel; (2) a representative from the media; (3) a representative from the Department of Justice; and (4) any elected public official.

The Court clarified that Section 21 applies whether the drugs were seized in a buy-bust operation or pursuant to a search warrant. In this case, the police officers admitted that no media representatives, barangay officials, or Department of Justice representatives were present when they entered Sio's residence. The barangay official and media representatives arrived only three hours later. This delay raised serious questions about whether the drugs found were switched, planted, or contaminated—precisely the evils the witnesses' presence is designed to guard against.

The Consequence: Inadmissible Evidence

When a search and seizure are unreasonable and contrary to the Constitution and Section 21, the evidence seized is inadmissible. Without the illegally seized drugs and paraphernalia, there was no probable cause to support the arrest warrant or the Informations filed against Sio. The Court dismissed the criminal cases and ordered the return of all seized items, except for the shabu and drug paraphernalia, which were forfeited to the State.

Practical Takeaways

• Police must strictly comply with the particularity requirement of search warrants. Searching a place different from that stated in the warrant, or seizing items not described in it, renders the search unreasonable and the evidence inadmissible.
• The chain of custody requirements under Section 21 of Republic Act No. 9165 apply to all drug seizures, including those conducted pursuant to a search warrant.
• The presence of the required witnesses—the accused or their representative, media, Department of Justice, and an elected public official—at the time of seizure is mandatory. Their late arrival cannot cure the defect.
• Noncompliance with Section 21 may be excused only if there are justifiable grounds and the integrity of the seized items is preserved. These requirements are applied sequentially, not alternatively.
• For individuals facing drug charges, the admissibility of evidence is a critical battleground. If the search was unreasonable or the chain of custody broken, the case may be dismissed.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.